α + t and α + 3He Interactions and the Excited-State Spectrum of 6Li Nucleus
DOI:
https://doi.org/10.15407/ujpe70.1.3Keywords:
6Li, three-particle reactions, two-dimensional coincidence spectrum, α t interaction, α 3He interactionAbstract
A kinematically complete analysis of the 3He(α, pα)d reaction on 3He nuclei of radiogenic origin accumulated in titanium-tritium targets, as well as the 3H(α, dα)n and 3H(α, τt)n reactions on tritium nuclei accumulated on the same targets, has been carried out to study the excitation spectrum of 6Li nucleus at excitation energies E* < 26 MeV with the energies of accelerated alpha particles Eα = 27.2 and 67.2 MeV. Three unbound excited levels are observed in the excitation energy interval of 6Li nucleus from 7 to 16 MeV, as well as two excited levels of 6Li with excitation energies of 21.30 and 21.90 MeV, which are consistent with theoretical calculations, but were not reliably confirmed experimentally. The application of the particle decay spectroscopy method made it possible to eliminate some ambiguities in the energy parameters of the excited states of the 6Li nucleus.
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